numam-dpdk/tools/cpu_layout.py
2013-07-25 15:23:26 +02:00

91 lines
2.9 KiB
Python
Executable File

#! /usr/bin/python
#
# BSD LICENSE
#
# Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Intel Corporation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#
import sys
sockets = []
cores = []
core_map = {}
fd=open("/proc/cpuinfo")
lines = fd.readlines()
fd.close()
core_details = []
core_lines = {}
for line in lines:
if len(line.strip()) != 0:
name, value = line.split(":", 1)
core_lines[name.strip()] = value.strip()
else:
core_details.append(core_lines)
core_lines = {}
for core in core_details:
for field in ["processor", "core id", "physical id"]:
if field not in core:
print "Error getting '%s' value from /proc/cpuinfo" % field
sys.exit(1)
core[field] = int(core[field])
if core["core id"] not in cores:
cores.append(core["core id"])
if core["physical id"] not in sockets:
sockets.append(core["physical id"])
key = (core["physical id"], core["core id"])
if key not in core_map:
core_map[key] = []
core_map[key].append(core["processor"])
print "============================================================"
print "Core and Socket Information (as reported by '/proc/cpuinfo')"
print "============================================================\n"
print "cores = ",cores
print "sockets = ", sockets
print ""
for s in sockets:
print "\tSocket %s" % s,
print ""
for s in sockets:
print "\t---------",
print ""
for c in cores:
print "Core %s" % c,
for s in sockets:
print "\t", core_map[(s,c)],
print "\n"